Feasibility study of a stratospheric-airship observatory

Douglas K. Griffin; Bruce Miles Swinyard; Sunil Sidher; Patrick Irwin

doi:10.1117/12.458638

3 March 2003 Feasibility study of a stratospheric-airship observatory

Douglas K. Griffin, Bruce Miles Swinyard, Sunil Sidher, Patrick Irwin

Proceedings Volume 4857, Airborne Telescope Systems II; (2003) https://doi.org/10.1117/12.458638
Event: Astronomical Telescopes and Instrumentation, 2002, Waikoloa, Hawai'i, United States

Abstract

This paper explores the concept of utilizing a long duration stratospheric airship as an astronomical observatory in the sub-millimetre wavelengths. In the first section of the paper, a conceptual description of the airship platform is presented along with the principles of operation of the platform. The results of a computer design code and trajectory simulation code are presented. These codes show that through the use of a modest power and propulsion system, the difficulty of constructing such a such a platform is greatly reduced. Finally, the results of a brief study into the accommodation and optical performance of a 3.5m class telescope and photometric and spectrographic instrument similar to the Herschel/SPIRE system within such an airship are presented. This study indicates that while the atmospheric absorption and emission characteristics impose some limitations on the spectrographic and photometric performance of the system in the 200μm to 1000μm band, the overall performance is more than adequate to render the concept viable and complementary to existing and planned ground, airborne and space based observatories.

Citation Download Citation

Douglas K. Griffin, Bruce Miles Swinyard, Sunil Sidher, and Patrick Irwin "Feasibility study of a stratospheric-airship observatory", Proc. SPIE 4857, Airborne Telescope Systems II, (3 March 2003); https://doi.org/10.1117/12.458638

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